ASoC: Enable ASoC register map dump for some regmap CODECs

It's still useful to be able to poke around in the register map at
runtime.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm5100.c

@@ -2568,6 +2568,13 @@ static int wm5100_remove(struct snd_soc_codec *codec)
 	return 0;
 }
 
+static int wm5100_soc_volatile(struct snd_soc_codec *codec,
+			       unsigned int reg)
+{
+	return true;
+}
+
+
 static struct snd_soc_codec_driver soc_codec_dev_wm5100 = {
 	.probe =	wm5100_probe,
 	.remove =	wm5100_remove,
@@ -2576,6 +2583,8 @@ static struct snd_soc_codec_driver soc_codec_dev_wm5100 = {
 	.set_pll = wm5100_set_fll,
 	.set_bias_level = wm5100_set_bias_level,
 	.idle_bias_off = 1,
+	.reg_cache_size = WM5100_MAX_REGISTER,
+	.volatile_register = wm5100_soc_volatile,
 
 	.seq_notifier = wm5100_seq_notifier,
 	.controls = wm5100_snd_controls,

sound/soc/codecs/wm8962.c

@@ -4123,11 +4123,20 @@ static int wm8962_remove(struct snd_soc_codec *codec)
 	return 0;
 }
 
+static int wm8962_soc_volatile(struct snd_soc_codec *codec,
+			       unsigned int reg)
+{
+	return true;
+}
+
+
 static struct snd_soc_codec_driver soc_codec_dev_wm8962 = {
 	.probe =	wm8962_probe,
 	.remove =	wm8962_remove,
 	.set_bias_level = wm8962_set_bias_level,
 	.set_pll = wm8962_set_fll,
+	.reg_cache_size	= WM8962_MAX_REGISTER,
+	.volatile_register = wm8962_soc_volatile,
 };
 
 static const struct regmap_config wm8962_regmap = {

sound/soc/codecs/wm8994.c

@@ -3815,12 +3815,20 @@ static int  wm8994_codec_remove(struct snd_soc_codec *codec)
 	return 0;
 }
 
+static int wm8994_soc_volatile(struct snd_soc_codec *codec,
+			       unsigned int reg)
+{
+	return true;
+}
+
 static struct snd_soc_codec_driver soc_codec_dev_wm8994 = {
 	.probe =	wm8994_codec_probe,
 	.remove =	wm8994_codec_remove,
 	.suspend =	wm8994_suspend,
 	.resume =	wm8994_resume,
 	.set_bias_level = wm8994_set_bias_level,
+	.reg_cache_size	= WM8994_MAX_REGISTER,
+	.volatile_register = wm8994_soc_volatile,
 };
 
 static int __devinit wm8994_probe(struct platform_device *pdev)

sound/soc/codecs/wm8996.c

@@ -3039,6 +3039,12 @@ static int wm8996_remove(struct snd_soc_codec *codec)
 	return 0;
 }
 
+static int wm8996_soc_volatile_register(struct snd_soc_codec *codec,
+					unsigned int reg)
+{
+	return true;
+}
+
 static struct snd_soc_codec_driver soc_codec_dev_wm8996 = {
 	.probe =	wm8996_probe,
 	.remove =	wm8996_remove,
@@ -3051,6 +3057,8 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8996 = {
 	.dapm_routes = wm8996_dapm_routes,
 	.num_dapm_routes = ARRAY_SIZE(wm8996_dapm_routes),
 	.set_pll = wm8996_set_fll,
+	.reg_cache_size = WM8996_MAX_REGISTER,
+	.volatile_register = wm8996_soc_volatile_register,
 };
 
 #define WM8996_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\